Safety-pin.



PATENTED APR. 24, 1906 W. W. BROWN.

SAFETY PIN.

APPLICATION FILED MAY 23. 1905.

UNITED sTATEs PATENT oEEioE.

WILLIAM BROWN, OF MEDIA, PENNSYLVANIA, ASSIGNOR TO ROBERT P. BROIVNMANUFACTURING COMPANY, OF NE\V YORK, N. Y., A CORPO RATION OF NE'W YORILSAFETY-PIN.

Specification of Letters Patent.

Patented April 24, 1906.

To (LZZ whom it may concern:

Be it known that I, W'Irtnmr WV. BROWN, a citizen of the United States,residing at Media, in the county of Delaware and State of Pennsylvania,have invented certain new and useful Improvements in Safety Pins, ofwhich the following is a specification.

My invention has relation to that type of safety-pin wherein the movablemember is IO adapted to engage a shield or guard of the fixed member;and in such connection it relates more particularly to the arrangementof the movable member and the shield or guard to permit of a freesliding movement of the i 5 movable member in the shield or guard, but

to arrest and to limit the extent of such movement and to lock themember to the shield or guard when the same occupies an abnormaldistorted position with respect to the shield or guard.

The principal object of my present invention is to provide a safety-pinhaving a shield or guard with a head having a smooth or even underbearing-surface and the movable member provided with a notch, whichnotch when the shield or guard and movable member are in engagementoccupies a position within the shield or guard some distance from theunder free edge of the shield or guard, whereby the movable member isafforded a free sliding movement so long as it does not occup y anangular or distorted position with re spect to the shield or guard,while when the movable member occupies a distorted angu- 3 5 larposition the notch thereof will engage the under smooth or even surfaceto securely lock, by means of the notch, the movable member to theshield or guard irrespective of the strain to which the movable membermay be subjected in assuming its distorted angular form with respect tothe shield or guard.

The nature and scope of my invention will be more fully understood fromthe following description, taken in connection with the accompanyingdrawings, forming part hereof,

in which Figure 1 is an enlarged side elevational view of a safety-pinembodying main features of my invention, the notched member of the pinbeing illustrated as released from the shield or guard of the pin andFig. 2 is a similar view, partly sectioned, of the notched memberillustrated as engaging the shield or guard and occupying with respectto the same, substantially in its normally operative position in theguard, a straight position and an abnormally angular distorted positionwhereof the notch is in engagement with the under free edge of theshield or guard.

Referring to the drawings, A represents a safety-pin comprising thefixed member (I, having at one end a coil (4, terminating in the movablemember a". To the free end of the fixed member a is secured in the usualwellknown manner a shield or guard B, the head l) of which is providedwith a smooth inner bearing-surface b and with downwardly-projectingwings If. The head I) so formed serves to receive and to retain thepointed end (1- of the movable member a", as shown in Fig. The movablemember a? is provided with a notch or angular depression m, which in thenormal position of the same is located within the head I) and a certaindistance from the edge 5 thereof, as shown in dotted lines in Fig. 2. Inthis position and when the movable member a is slightly bent the same isafforded a free sliding movement on the smooth or even-beariug-surfaccl) of the head b, as there are no obstructions provided to hinder such amovement. Then, however, the movable member a is subjected to excess ivestrain and is bent or distorted in the manner shown in full lines inFig. 2, the notch (1, otherwise freely passing over the edge I) of thehead I), is now arrested by the same. The edge I)" entering the notch aof the movable member prevents the same from becom ing disengaged fromthe head Z), and thus limits the movement of the movable member a in thehead I). The greater the strain brought to bear against the movablemember a the more securely will the same be locked to the head I), as afurther bending of the movable member will only tend to hold the lookingedge b with greater force in engagement with the notch (0*.

Having thus described the nature and object of my invention, what Iclaim as new, and desire to secure by Letters Patent, is-

A safety-pin having a shield or guard i11- closing the outer end of thefixed member of the pin formed as a continuation of the spring-actingmember thereof, the latter being provided with a notch near its free endmy signature in the presence of two subscriband said lspring-actingmember when bent ing Witnesses. into an n ar osition en a in the outerunder edg of th shield 0r guird in the notch of WILLIAM BROWN 55 thespring-acting member in such condition Witnesses: I

to become locked against disengagement. J. WALTER DoUGLAss,

In testimony whereof I have hereunto set THOMAS M. SMITH.

